How should the mechanical seal be assembled?

How should the mechanical seal be assembled?

(1) The assembled parts themselves must meet the specified technical requirements, and any unqualified parts cannot be assembled. This part must be strictly inspected before assembly.

(2) The correct matching method must be selected to meet the requirements of matching accuracy. A large amount of work in the repair of mechanical seals is to restore the matching accuracy of the mutual matching parts, and methods such as matching, repairing, and adjustment can be used to meet this requirement. The effect of thermal expansion should be considered for the fitting clearance. For fittings composed of materials with different expansion coefficients, when the ambient temperature during assembly is significantly different from the temperature during operation, the resulting clearance change should be compensated.

(3) Analyze and check the accuracy of the assembly dimension chain, and meet the accuracy requirements through matching and adjustment.

(4) The principle of handling the assembly sequence of the parts is: first inside and then outside, first difficult and then easy, first precision and then general.

(5) Select the appropriate assembly method and assembly equipment and tools. Machinery Seal

(6) Pay attention to the cleaning and lubrication of parts. The assembled parts must be thoroughly cleaned first. For the moving and fitting parts, a clean lubricant that meets the working requirements should be applied to the relative motion surface.

(7) Pay attention to the mechanical seal during assembly to prevent 'three leaks'. To use the specified sealing structure and sealing material, can not use arbitrary substitutes. Pay attention to the quality and cleanliness of the sealing surface. Pay attention to the assembly method and assembly tightness of the seal, and the static seal can be sealed with an appropriate sealant.

(8) Pay attention to the assembly requirements of the locking device and comply with safety regulations.

(9) Pay attention to the quality inspection of the intermediate links of assembly.